Castellum, Inc. — Investor Relations & Filings
Filings indexed
278
across all filing types
Latest filing
2026-05-18
Regulatory Filings
Country
US
United States of America
Listing
US
CTM
Castellum, Inc. is a technology company providing services to U.S. government and commercial clients to address national security challenges. Its core offerings include cybersecurity, software development, systems engineering, information and electronic warfare, program support, and data analytics. The company also provides subject matter expertise in artificial intelligence, machine learning, 5G technologies, model-based systems engineering, program management, and intelligence analysis. A key component of Castellum's growth strategy involves the strategic acquisition of technology firms to expand its capabilities and market presence in the national security sector.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 8-K | 2026-05-18 | English | |
| 8-K - Castellum, Inc. (0001877939) (Filer) | 2026-05-13 | English | |
| DEF 14A - Castellum, Inc. (0001877939) (Filer) | 2026-04-07 | English | |
| 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-27 | English | |
| 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-26 | English | |
| 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-20 | English |
Browse filings by year
6 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
11 filings
| |||||
| 46384063 | 8-K | 2026-05-18 | English | ||
| 45542787 | 8-K - Castellum, Inc. (0001877939) (Filer) | 2026-05-13 | English | ||
| 33743084 | DEF 14A - Castellum, Inc. (0001877939) (Filer) | 2026-04-07 | English | ||
| 33065823 | 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-27 | English | ||
| 33052078 | 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-26 | English | ||
| 33001932 | 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-20 | English | ||
| 32979564 | 4 - Castellum, Inc. (0001877939) (Issuer) | 2026-03-18 | English | ||
| 32155089 | 8-K Filing | 2026-02-17 | English | ||
| 13509965 | 8-K | 2026-01-08 | English | ||
| 13509968 | FORM 3 | 2026-01-02 | English | ||
| 13509966 | 8-K | 2026-01-02 | English | ||
|
2025
4 filings
| |||||
| 13509962 | FORM 4 | 2025-12-22 | English | ||
| 13509963 | FORM 4 | 2025-12-17 | English | ||
| 13509964 | FORM 4 | 2025-12-12 | English | ||
| 13509970 | 8-K | 2025-12-09 | English | ||
Market data
Market data not available
Last price
Market cap
volume
Day range
today
52-week range
trailing
Price history
Peer group · Other information technology and computer service activities
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
AFERIAN PLC
A B2B media technology company providing video streaming so…
|
AFRN | GB | Telecommunications, computer pr… |
|
AGTech Holdings Ltd.
Provides technology and service solutions for the lottery, …
|
8279 | HK | Telecommunications, computer pr… |
|
AIQ Limited
Acquires and develops businesses in smart tech, e-commerce,…
|
AIQ.L | KY | Telecommunications, computer pr… |
|
AISIX SOLUTIONS INC
Climate risk and data-analytics provider using proprietary …
|
AISX | CA | Telecommunications, computer pr… |
|
Allot
Provider of network intelligence and security solutions for…
|
ALLT | IL | Telecommunications, computer pr… |
|
Asean Cybernetics Inc.
Canadian entity whose name suggests involvement in advanced…
|
— | CA | Telecommunications, computer pr… |
|
Asgent, Inc.
A developer and distributor of network security solutions f…
|
4288 | JP | Telecommunications, computer pr… |
|
ATEC MOBILITY Co., Ltd
Develops transportation card and RFID systems for mobility …
|
224110 | KR | Telecommunications, computer pr… |
|
Aura
Offers an all-in-one suite for identity, financial, and dev…
|
AURA | IL | Telecommunications, computer pr… |
|
authID Inc.
A cloud-based, biometric identity platform for secure, pass…
|
AUID | US | Telecommunications, computer pr… |
Castellum, Inc. via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/34160/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=34160 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=34160 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=34160 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 34160}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for Castellum, Inc. (id: 34160)"
Report missing filing
Can't find a specific document? Let us know and we'll add it within 24 hours.
We will notify you once the filing is added.
Report sent
Thank you. We will check the data and update it shortly.